(The study’s researchers said there were an average of 9.1 motorcycle deaths at night when there was a full moon, compared with an average of 8.64 motorcycle deaths on nights without a full moon. Noah Silliman/unsplash.com)

Motorcyclists should take extra care the next time they’re out for a drive at night during a full moon.

Analyzing 1975-2014 data from the official U.S. registry of motor vehicle crashes, researchers from Princeton University and the University of Toronto calculated the number of fatal motorcycle crashes on full moon nights compared with the control nights without full moons.

They found an average of 9.1 motorcycle deaths at night when there was a full moon, compared with an average of 8.64 motorcycle deaths on nights without a full moon.